Thread-parting mechanism for looms.



L. s. BURBANK. THREAD PARTING MECHANISM FOR LOOMS.

APPLICATION FILED MAY 4, 1912.

Patented Nov. 26, 1912.

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L. S. BURBANK. THREAD PARTING MECHANISM FOR LOOMS.

APPLIOATION FILED I HAY 4, 1912 QM E II 0 dm %r m ,msgm

ZM w 8 J m m 7/ 1 tours s; BUR-Benn, or EQIEDALE, imsseenusnnrs, Assienon we-eeiemcmmnz,

Toial l whom 'iigmey Be itfknown, that I, Louis a'foitizeniof the United States, and resident .oF Eornnenn, Jiuesseoii'usnrrs, A oonrone'rron or theme.

' S. BURBANK,

" ofHopedale, county of Worcester, State of Massachusetts, have invented can Improve; fment. "in Thread Parting Mechanism for v Loon-1s,

of which the following description,

"inconneotion with the accompanying drawt-hread-cutter operatedby or through the lay such a device'being shown in.

mg,- is a specification, like-characters on the;

.drawing repi esenting like parts. 3 'This' invention relates to looms of the type i tcherein the working shuttle is replenished filling while the loom' "tcoiltinues in operation, and it has for one of its-objects the production of novel means for perting-the-filling-end extending from the selvage of the cloth to the replenishing; shut tenement. with tle-box 'when replenishment is efiectedl f The parting of this filling-end adjacent the. cloth is convenientlv elieoted by a temple 765,687. granted end is not brought promptly into the held of, action of the cutter, and to obviate such --iindesiifable .delay I have provided a device to ooiiperatewith the filling-end and-position' it properlyv with relation I to the temple thread-cutter whenever filling replenishment is efi'ected. By this arrangement the fillingend is partedgimmediately and before the fresh fillingtislaid. in the shed.

" I a I. haveprovided herein a novel form of shuttle-feeler to detect improper positioning of ,the; shuttle for filling-replenishment, and theshuttle-feeler is arranged to pre- ,Vent the operation of the replenishing mechanism if the-shuttle is boxed improperly. I

' The device for positioning the filling-end ,-1-elation. to the temple thread-cutter is brought.into; .-action only when --fill 1ng ,re-. appear;here,-

plenishment is e1fected,.-as -will ey e1 dguotiong-ef means; to efi'eo'tiia i the partediifilling-endii-om the cloth by: the. flight-ofthe shuttle, nor williit foul orhec'orne entangledwith the thread of the fresh filling supply inserted in the'shuttle. i Y

lhe various'novel features ofmy invenrHnnAn PAnrineinnoHANisM eon; :LooMs:

practical embodiment .on the line 4 4:,

.to thetemple thread-cutterjtothe-shuttle, fso t-hattl'lQfillll'IQrQIldf will not'loe ca-rried back into i raeeneeenev. 215e, eiei tion will be fully descrihedin the seejeind specification and particularly pointed out in i the 'followng claims: .l 1

Figure l is a top planview of a portion of the replenishing side of an automa'tiofillingreplenishing loom oia well known type, with a thread-cutting temple, and with one of. my present invention shown in operative relation tot-he other,-

parts, but for convenience I have shown the picker asin its inward position :in there plenishing shuttle-box ';Fig.,2 is afrontelevation and partial section ofaportion of the apparatus shown in Fi transverse sectional detail .throughthelay and v replenishing; shuttle-box-;on the: line 3+3, Fig. 2; Fig. 4: is a trans'yerses ection Fig. 1, looking toward the right, the temple detail in plan view and part section, taken on the line 5--5, Fig. 4,-looking dow1gt0 be referred to hereinafter;

plan View showing the thread ositioning g. 1 Fig. 3*is being omitted Fig." 51 is a;

Fig; 6 is a detail-top device in action, presentingtheifilling en'dw:

he parted thereby, 3

Referring to the drawings; thelaYAhW: ing at one end a-shuttle bozr B,open at its' bottom at C above thenut-away"partof the?" lay, for the passage therethroug-h of the-' fill ing-carrier ejected from ftllflsllllttlhfif"the shuttle D of the automatically self-threadhopper, partly indicated at mounted on the horizontal" stud I carried-by ing type,- pickef-stick'E,loreast heem F hairmg a stand G rigidly mounted thereongthef" H, i for 'the reserve supply of filling-carriers and rotatably,

the stand G, the transferrer and theetarting or controlling rock-'shaft-K Which-""goV- erns the operation'ofthe filling replenishing HIGQllflIllSlTl,

are and may be all of 'w'e ll known construction andoperatelin a -'man ner familiar to those skllled-intheart'.

lThewlaypcarries theusual e elilL cg': Figs; 1:;andu 6 La? thread c utting a. isrshown,theimovahle bled- .111 1 lathe-pro;

he t-hreh d cutter: being shown as -lno'rma V' pro ted in readiness:"tez 'engage-fille thr'e a partedgl the r'etraction of tlre blade feeted by or through the-flayon the beat 111'), as in the Stim'pson,patentreferredto? 'Herein I make use ofthe protector reckshaft 0 to sustain the main portion eette thread positioning means, said roelnsh'aft being sustained in suitable hearing%, as P,

loo

carried by the lay-swords Q. A peculiarly shaped cast1ng is mounted loosely on said xock shaft, ito-support the thread-positionr ga-device, the-casting comprising an elongated. yaks; 1 having alined bearing hubs 2, 3 5. through which the rock-shaft is extended; the hubs receiving between them the. bearing P referred to. Hub 3 has a lioiizo1ital-,-f lateral extension 4 longitudi all grooved; and slotted at- 5, for the receptipn of .a: clamping bolt 6, while hub 2 has-"a depending and rearwardly turned finger-'7 extended from it. A fiat, resilient metal carrier. 8;isclamped'at its lower end to thextension 4 by: means of the bolt 6, andj-the carrier may be adjusted laterally uponthe extension, as will be manlfest, the

4' carrier extending through a loop-like elongated; stop 9 fixedly attached to the back of 'the= lay, the' stop limiting rearward movement .o2;;the' carrier induced by the spring 10.";1Tlie adjustment thus provided enables the positioning device to beset in the best place: with relation to the thread-cutter, as will-be manifest. Said spring connects the bottom-of'the'lay'and-a lug on the yoke'l' oithe'support, and normally acts to keep. theis upport and the carrier in the positionshown. injFig. 4, with the thread-positipningideviee' 11 retracted. This positioning device is made as a thin, hat and upright met'alblade located between two adjacent dents. of the reed L, the blade-being rigidly secured to the carrier 8 and projecting frontward therefrom. The positioning device-is movable in alvertical plane across.

and-transverse to the lay raceway, when the support is rocked on the shaft 0, but when the member 11'is retracted by the spring 10 out of the shuttle path. When the support is rocked against the action of spring 10 the carrier 8 will be moved forward and up- "ward and the positioning device 11 will'be moved frontward into and across theshuttle path'fas shown in Fig.- 6, and the front edge of the blade 11 will be very close to the movable cutting blade N vOf the temple.

(.The operative movement of the parts re-' ferred to. is effected by or through rot-ative movement of the: controlling or starting shaft Kin the. direction of the arrow, Fig. 4, such movement'of the shaft elevating an do tojoper'ative position it will lie in the path of movement of the finger 7 as the lay beats up, so-that theyoke-likesupport 1 will be "rocked and the positioning device 11 will be moved toward the front of the lay on the.

beat-up, as shown in Fig. 6. The bunter its front edge isheld within thereed and.

is connected with the arm 12 by a link 14 passing loosely through cars 15, 16 on said arm and hunter, Fig. 4, and a spring 17' is interposed between the car 15 and. the nut on the lower end of the link, so that in case 'of necessity the spring will yield should uprward swing of the hunter be prevented when shaft K is turned to bring about filling re,- plenishment. The hopper stud I is" reduced in diameter and extended beyond the inner side of the stand G, as at 18, Fig.1, to recelve upon it an elongated hub 19 from .which depends a shuttle-feeler 20, clearly shown in Fig. 4. The lower end or tip .of

the feeler is turned rearward at21 and normally occupying the position shown in Figs, 1 and 4, so thatas the lay. beats up the tip will pass across thelay adjacent the mouth 'oljthe' shuttle-box B, provided the shuttle id properly boxed therein'or is at the other end of the lay. If thesh'uttl'e should be improperly boxed at the replenishment side it will hit the tip' of the feele'r'20 and will swing the latter frontward as the laybeats up,'and bymeans to be described the oper 'fm ation of the replenishing mechanism will be prevented," even if 'dalled for in usual man'- ner.

wardly extended arm 92 to which is'pivot ally attached the upper end of-a link'23, saidlink at its lower end having an elon-- gated slot 24, Fig. 4, which embraces loosely the reduced end '25 of a headed screw stud 26, .Fig: 1, a washer and cotter-pin'2'7 retaining the slotted end of the link'in place. The head 28 of the stud is interposed be tween the link and the adjacent face of an up urned ear 29 on thebuntei 13, said ear having. projecting from its Opposite face a conically bored hub 30. which receives the correspondingly tapered end of a' lateral branch rod 31, Fig.1, said branch rod being secured rigidly in the boss by the screw stud 26. At its outerend the branch rod carries an upturned, hooked detent- 32 which cooperates with a pin 33 on the isual notched dog R operatively connected with the transferrer J, the detent acting normally to maintain the dog in the positionshown in Fig. 4 and out of the path of the usual "hunter S on the lay. The operation of the dog and hunter is well known, the elevation of the dog so that its notched end is -engaged by replenishing mechanism.

the hunter S effecting the operation of the Referring to Fig. 4, a willbe understood from the foregoing that movement ofthe shuttle-feeler' 20 to abnormal position. is

effected only when the shuttle fails to be.

boxed properly in the'box B, and iflsuch movement .of thefeeler occurs during the.

normal operation of the loom the link 23 will be moved downward, the slotted lowerend thereof sliding over thestud end 25, and

.The .hub 18 has an attached and rear? esp '. "13045.net

the detent 32wi11 drawndown, depressing Should-'fit he improperly boxed the shuttle {feeler 2O is-engaged by the shuttle and moved forwardto abnormal position and the link 23 will he nioyed downward, the upper end oi thfe slotflai -engaging the stud end andadepressing-the hunter 13, the spring 17 "Emitting: such actionl The depression of thepin 33'and pulllthe dog R down- Wardoufiot thepatlrof its hunter S, and there w-ill beno operation of the replenishniggmeehanism, even though it was called ion? S05too,-the-'depression of the hunter 13- lowr's its free end below the path of the {ingen ty and consequently there will he no 11' from its normal-,in'active position shown. This-is as it should be. manifestly, for unless the filli'n'g in th'ev working shuttle is; repleniislied-ih-mnld b'e improper to bring the old filing}; endfiintoathe range of the temple scutter. The'weight of the depending sli tle eelerQO- is sufficient to'maintain it h'e dink 23in the position shown in and 4 under normal conditions, and to such partsthereto after they have been positioned abnormally. T

lVhe'n filling replenishment is effected the old fillingen'd, ind'icatedat T, Fig. 6, should he severedadjacent the selvage of the cloth, fandat: such time -the said filling endis en-' gaged' bylthe positioning device 11 and pu'sliedtoward the front of the lay, adjacent the usual cutting-blade N on the temple.

While the .ifilling'end is thus engaged and positionedftjhe continued forward movement of the layfefiects theretractivemovement of-sucli-.;bl=ade, in well/known manner, and the filling end-is thereby. drawn against, the

reheat-ups: It'irill bea narennt at ItlDEQlEil-llE filling .endnlh ple; t-lnreadecutter, rivhich stilling .repl'enislinien is ranchonly whenrpl-nishment (it ling, kinkih'gior: twist ng-'- 0 th .ing 'otrp're ventits' accurate-and; 3 presentation" :to :the' prompt ;:actionthe temple thread-cutter. .;..-1

.XVhen the spent hobbin; ej 3.1165Sltl1flfl6 the se ered:pica! of: filling, will nqt sa-id*bunter-'canses the detent 32 to enmovemento f the thread-positioning member flirted blade and-severed :as thelayacomg-i 1 a always be; drawn completely oufi -of. the shuttle eye as the bobbindropsfrom thel'lay, an'd'may be carried back into the clothwhen j the shuttle is picked; or itimay foullthe .it'rsh filling and breakit, orfmake asbadrpla'ce in the cloth." --To obviate this havelproyided' simple means tofsl'cleanthis loose-filling end from the toefiect the removal f the filling end n the shuttle eye.

Referring, 0 Figs. 1, 2 and attach to tle'it the ejectionor" the spent the underside 'of the race plate'3tatthe front'side of the bobbin discharge opening C, two parallel and slightly separatedplates 35, '36, the rear edges of which are below'the. front edge of the opening C, and project slightly thereinto, and preferably the said I edges of the plates are toothed or serrated, as at 37, Figs. 1 and 3. The plates constitute a device to catch the filling end below the race plate and betweenthe interior of the shuttle and the ejected bobbin, and such thread engager or catcher is located a slight distance inward from the shuttle eye 38 when the shuttle is boxed, see Fig. 2.

'To cooperate with the catcher I attach to the picker stick E a clearer, shown as 'a thin, resilient plate 39' projecting inward from the stick below the race plate 34. and at such a height that its free inner end will sweep between the plates 35, 36 of the catcher when the picker stick is'swung inward to pick the shuttle'. lVhen the picker stick is'at its outward position the inner;

end of the clearer will be located adjacent the thread-catcher, Fig. 2. and the filling lee-- tween. the shuttle and the ejected bohbin,-

will hang over-the transverse edge of the clearer or against the catcher. 1

As shown in Fig. 1' the inner end of-the clearer is widenedto, form a frontwardly projectingprong 4-0, and concaved at 41 on its leading edge, this prong, as it sweeps along toward the'inner end of the shuttleboXBfengaging the bight of the filling end. between the parts 35, 36 of the, catcher and pulling the loose endcompletely out of the shuttle-eye, thefilling being caught by the lower one of the serrated edges 37 and held thereby asthe clearer prong 40 moves in ward and draws the loose end of filling over the upper serrated edge and out of the jshutwas an bin. 11 It. -;the, filling endldoes mot" engage, the

is ejected from the shuttle the concave edge 41 of theclearer will push the filling end frontward into engagement with the catcher. The thread clearing device herein shown and described is very'simple in its construction, it effectually clears the parted fill- .ing end from the' shuttle after filling replenishment, vand it is not in the way of other parts of the loom structure. Changes or modifications in various details of construction and arrangement may i be made by those skilled in the art without departing from the spirit and scope of my invention as set forth in the claims hereunto annexed. a Having fully described my invention, what I claim ,as new and desire to secure by Letters Patent is:

1. In aloo'm provided with-automatic fi1l 2 ing replenishing mechanism and with a.

rock-shaft to bring about the operation of said mechanism, a. thread-cutter to' part the old filling-end by or through the lay on its forwardfbeat, and a shuttle-feele'r to prevent the operation of said mechanism when the shuttle isimproperly boxed, in combifor the thread-positioning device when the.

shuttle is boxed improperly.

2. In a loom provided with automatic fillmg replenishing mechan1sm and with a temple having a tl'iread-cutter, actuated by or throu h the lay on the beat up, to part .the old llingaend adjacent the cloth when :filling replenishment is to take place, in eombmation, a blade-like thread-positioning device movable through the reed transversely of the lay at a point adjacent and at oneside: of-the thread-cutter, 'a resilient carfier for said device, a spring-controlled support pivotally connected with the lay and having an elongated portion lengthwise of the lay,'upon which said carrier is attached and adjustable longtiudinally, the support maintaining the thread-positioning device I normally inoperative, and means to act upon and rock said support to 'thereby place said device in operative position in front of the reed when filling replenishment is to be effeeted, adjustment of the positioning device accommodating lateral adjustmentof the 65,. thread-cutting temple.

, vent the'actuation of the replenishing mech- 3. In an automatic filling replemshing loom having a temple thread-cutter, and a. shuttle-feeler maintaining its normal position 'when filling replenishment is called for loom having a temple thread-cutter,.the lay adapted'tooperate said cutter, and the reed on the lay, in combination, a blade-like member movable through the reed at a point nearly opposite the thread-cutter, to engage andposit-ion at one side of saidcutter'the filling-end to be acted upon by the threadcutt-er, I1E62t11S to supportthe said memberon and in a position adjustable lengthwise of the lay and tomove it transversely of the lay into and out of operative position at the front of the reed, a spring to retractthe thread-positioning member, astop to limit retractive movement thereof, said stop being elongated lengthwise of thelay to 33001111110.- date adjustment of'said member, and means to actuate said supporting means and render said member operative when filling replenishment is called for and is to be effected.

5. In a loom providedlwith automatic filling replenishing inedhanism, in combination,

a lay, a normally quiescent shuttle-feeler mounted independently thereof, and assuming the shuttle feeling position on the beat up when the shuttle is boxed properly, im-

proper boxing of the shuttle causing movement of the shuttle-feeler to abnormal position as the lay heats up, means to govern" the 11 time of operation of the replenishing mechanism, and a controlling connection between said means and the shuttle feeler, to pre anism when said feeler ispositioned alenormally.

6-. In a loom provided with filling replenishing mechanism. including a rotatable hopper, and also provided with a lay having a shuttle-box at the replenishing end, in combination, a normally quiescent shuttlefeeler depending from the hopper axis and assuming feeling position at the mouth of the said shuttle-box on the beat up when the shuttle is properly boxed, and means, operatively connected with the shuttle-feeler, to bring about the operation of,the replenish ing mechanism if the feeler remains quiescent and in its normal position, improper boning of the shuttle causing. it to engage 130 and move the feeler to abnormal positionon thebeatup,

7. In an automatic filling replenishing loom having a thread-cutter mounted independently of. and in front of the lay, and

the lay adapted to operate said cutter on the beat-up, in combination, a normally inoperative device carried by the lay and adapted to present positively the old filling end to said thread-cutter to be cut thereby,

'- means to sustain said positioningdevice in a laterally adjustable position upon the lay, and-means to-efiect the actuation of said device only when filling replenishment is effected.

-8.' In an automatic filling replenishing loom having a temple provided. with a thread-cutter, and the lay adapted tooperate the butter on the beat-up, in combination, a rocking support on the lay, having an elongated, lateral extension a device attached to and adjustable laterally on said.

extension, to engage and present the old filling end to the thread-cutter to be out there-- by, an elongated stop to limit retractive movement of said device; a spring to act upon the support and maintain the said P0? .sitioni'ng device normally retracted, and

means to rock the support and render said positioning device operative only when filling replenishment is effected,

9. In a loom having automatic filling replenishing mechanism, and means to part the old filling end between the-cloth and the 7 shuttle, in combination, a thread-catcher on the lay belowthe shuttle at the time of re- 1 lenishment and adapted to engage the garted filling end between the shuttle-eye ,and the discharged bobbin, a picker-stick, A and a clearer mounted thereon and adapted toengage the filling end between the catcher and the shuttle on the active stroke of the picker-stick, to draw the loose end of the fillingout of the shuttle-eye.

10. In a loom having automatic filling replenishing mechanism, and means to part.

the filling end by said members operating to draw it from the shuttle.

11: In a loom having automatic filling replenishing mechanism, and means to part the old filling end between the cloth and the shuttle, in combination, thread-clearing means movable with the lay and including a member movable also longitudinally of the lay relatively thereto, to engage the parted filling end between the shuttle and the ejected bobbin and draw such filling end from the shuttle.

In testimony whereof, I have signed my name to this speclfication, 1n the presence of two subscrlbing witnesses.

LQUIS S. BUHBANK.

lVitnesses:

FRED R. DANIELS,

E. D. Oscoon. 

